Quammoth

The quammoth (a portmanteau of "aqua" and "mammoth") is an aquatic mammoth-like mammal that calls oceanic vents home. These gigantic creatures are too large and heavy to swim; instead, they stand on four thick legs and walk along the seafloor. Quammoths offset their limited mobility by using dozens of lengthy tentacles to defend themselves, hunt small fish for food, and manipulate their environment. These tentacles have a stiff, wood-like skin that ancients used to make canoes out of.

The quammoth (a portmanteau of "aqua" and "mammoth") is an aquatic mammoth-like mammal that calls oceanic vents home.